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Maize plants with severe zinc deficiency in the foreground, with healthier plants (planted at the same time) in the background. Zinc deficiency is common in many different types of soil; some soils (sandy soils, histosols and soils developed from highly weathered parent material) have low total zinc concentrations, and others have low plant-available zinc due to strong zinc sorption ...
Note general patterns rather than looking at individual plants—are the symptoms distributed throughout a group of plants of the same type growing together? In the case of a deficiency all of the plants should be similarly effected, although distribution will depend on past treatments applied to the soil.
Zinc deficiency producing general yellowing and stunting of new leaves . Cyathia drop: Response to low light conditions, dryness and/or high temperatures at the end of the production cycle Dropping Ethylene toxicity (< 1 ppm) or low temperature chilling Edema: Physiological Interveinal chlorosis: Magnesium deficiency, initiating on older leaves
Zinc deficiency Cold injury Low temperatures Panicle blight Cause undetermined golden apple snail Pomacea canaliculata: Pecky rice (kernel spotting) Feeding injury by rice stink bug, Oebalus pugnax: Rice tungro: Complex virus (Rice tungro bacilliform virus and Rice tungro spherical virus) transmitted by green leafhopper Nephotettix spp ...
Mineral deficiency is a lack of the dietary minerals, the micronutrients that are needed for an organism's proper health. [1] The cause may be a poor diet , impaired uptake of the minerals that are consumed, or a dysfunction in the organism's use of the mineral after it is absorbed.
Boron deficiency Jelly seed Unknown post-harvest disorder Lenticel spotting Heavy rains or prolonged post-harvest dips Little leaf Zinc deficiency Manganese deficiency Insufficient manganese Parasitic lichen Strigula elegans (Fee) Muell Arg. Premature ripening Cause of disorder unknown Pressure damage
Micronutrient deficiency is defined as the sustained insufficient supply of vitamins and minerals needed for growth and development, as well as to maintain optimal health. Since some of these compounds are considered essentials (we need to obtain them from the diet), micronutrient deficiencies are often the result of an inadequate intake.
Zinc deficiency is defined either as insufficient zinc to meet the needs of the body, or as a serum zinc level below the normal range. However, since a decrease in the serum concentration is only detectable after long-term or severe depletion, serum zinc is not a reliable biomarker for zinc status. [1]